| US 7,597,363 B2 | ||
| Reinforcing ring for a plastic fitting and plastic fitting incorporating a reinforcing ring | ||
| Rabih Hikmat, Laval (Canada); and Robert Laflamme, Verdun (Canada) | ||
| Assigned to Ipex Inc., Verdun (Canada) | ||
| Filed on Feb. 21, 2006, as Appl. No. 11/356,954. | ||
| Claims priority of application No. 2524768 (CA), filed on Oct. 27, 2005. | ||
| Prior Publication US 2007/0096467 A1, May 03, 2007 | ||
| Int. Cl. F16L 15/00 (2006.01) | ||
| U.S. Cl. 285—392 [285/290.2; 285/291.1] | 18 Claims |
| 1. A reinforcing ring for a plastic fitting, comprising:
a first tubular portion;
a radial portion extending radially inwardly from a forward end of the tubular portion;
a guide portion extending rearwardly from a radially-inner region of the radial portion;
a starter thread extending radially inwardly from a rearward end of the guide portion; and
wherein the reinforcing ring is stamped from a metal sheet; and
wherein the starter thread is no more than 360° around the guide portion.
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